Introduction
This is a prerequisite-only guide! This guide is part of another procedure and is not meant to be used alone.
Use this guide to remove or replace the motherboard and rear camera in your Samsung Galaxy S21.
For your safety, discharge the battery below 25% before disassembling your phone. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
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Heat an iOpener and apply it to the back cover's bottom edge for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the bottom edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Slide the pick back and forth along the bottom edge to slice through the adhesive.
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Leave the pick in to prevent the adhesive from resealing.
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Apply a heated iOpener to the back cover's left edge for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the left edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Apply a heated iOpener to the back cover's right edge for two minutes.
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Apply a suction cup to the back of the phone, as close to the center of the right edge as possible.
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Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
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Insert an opening pick into the gap.
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Rotate the right-edge opening pick around the top-right corner of the phone.
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Slide the top-most opening pick as close to the camera shell as possible.
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Repeat for the left-edge pick.
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Heat an iOpener and apply it to the camera shell for two minutes.
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There's additional adhesive to the right of the camera that you need to cut through.
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Angle the pick downward to avoid any damage.
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Rotate the back cover counterclockwise to create a gap between the camera shell and the frame.
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Insert an opening pick in the gap.
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Outil utilisé dans cette étape :Tweezers$4.99
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Remove the back cover.
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This is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.
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Remove any adhesive chunks with a pair of tweezers or your fingers. Apply heat if you're having trouble separating the adhesive.
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If you're using custom-cut adhesives, follow this guide.
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If you're using double-sided tape, follow this guide.
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Outil utilisé dans cette étape :Magnetic Project Mat$19.95
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Use a Phillips screwdriver to remove the five 4 mm-long screws securing the motherboard bracket to the frame.
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Outil utilisé dans cette étape :Tweezers$4.99
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Use a pair of tweezers to gently pull up and unclip the motherboard bracket from the frame.
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While using tweezers, or your fingers, to hold the motherboard bracket out of the way, use a spudger to pry up the battery press connector.
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While still holding the motherboard bracket out of the way, use a spudger to pry up and disconnect the wireless charging coil's press connector.
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Use your fingers to gently peel the wireless charging coil away from the phone.
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Use the point of a spudger to pry up and disconnect the earpiece speaker cable's press connector.
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Use a Phillips screwdriver to remove the seven 4 mm screws securing the earpiece speaker to the motherboard.
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Outil utilisé dans cette étape :Tweezers$4.99
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Insert the point of a spudger into the gap between the right-most edge of the earpiece speaker and the phone.
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Use the spudger to pry up and release the clips holding the earpiece speaker in place.
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Use tweezers, or your fingers, to remove the earpiece speaker.
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Use the flat end of a spudger to pry up and disconnect the front camera's press connector.
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Use a spudger to pry up and disconnect the orange press connector adjacent to the 5G antenna cable's press connector.
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Repeat for the green 5G antenna cable's press connector.
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Use a spudger to pry up and disconnect the 5G antenna cable's press connector.
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Use the point of a spudger to pry up and disconnect the power button cable's press connector.
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Use the flat end of a spudger to pry up and disconnect the display cable's press connector.
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Use a spudger to pry up and disconnect the secondary interconnect cable's press connector.
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Repeat for the main interconnect cable's press connector.
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Use a spudger, or your fingers, to bend the power button cable away from the phone.
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Repeat for the left-edge 5G antenna cable.
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Outil utilisé dans cette étape :Tweezers$4.99
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Use tweezers, or your fingers, to bend the orange 5G antenna cable away from the phone.
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Repeat for the green 5G antenna cable.
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Use a Phillips screwdriver to remove the 4 mm screw securing the camera bracket and the motherboard to the frame.
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Insert a spudger between the bottom-right edge of the motherboard assembly and the frame.
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Pry up with the spudger to release the clips securing the motherboard assembly.
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Use your fingers to remove the motherboard assembly.
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Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
